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An active feedback block and its applications

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2 Author(s)
Roy, S.D. ; Indian Institute of Technology, New Delhi, India ; Sinha, D.

The active feedback block considered in this correspondence consists of three identical single-pole amplifiers and a resistive network, and has a positive slope in the gain frequency characteristics over a certain frequency range starting from dc. When the device is cascaded to another single-pole amplifier, the bandwidth and the gain-bandwidth product of the overall system are found to be increased compared to those of a cascaded two-stage amplifier.

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Audio and Electroacoustics, IEEE Transactions on  (Volume:19 ,  Issue: 3 )